Interest Calculation

Apr 28, 2008

I have a macro that formats a spreadsheet to show outstanding invoices, grouped and subtotalled by month. To add to this I need VBA code that will use the subtotals to calculate interest on overdue accounts.

Interest becomes due a calender month after the month in which the invoice is dated. So for example a January invoice would start to accrue interest on 1st March.

Below is the subtotals code (sadly the totals don't adjust if data is added or removed but perhaps that is another question for another day.)

Dim LastRow As Long
Dim NextMonth As String
Dim R As Long
Dim Rng As Range
Dim SubAmount As Currency
Dim ThisMonth As String
Dim TotalAmount As Currency
Dim Wks As Worksheet

Set Wks = Worksheets("Reconciliation")
LastRow = Wks.Cells(Rows.Count, "A").End(xlUp).Row
Set Rng = Wks.Range(Cells(2, "A"), Cells(LastRow, "D"))

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Interest Rate Calculation With Payment Increases

Mar 4, 2014

I have a capital lease amortization schedule with annual increases to monthly rent that I am trying to solve for an interest rate such that the balance nets to zero at the end of the term. I am calculating on a monthly basis; in other words, principal minus monthly payment plus monthly interest expense equals ending monthly balance is calculated in each row each month. The present value is known, payment term is known, future value is zero, and the payment amounts increase annually. These assumptions may change for new leases so ideally the solution would be dynamic, adjusting for shorter/longer terms, etc. Here is an example of my assumptions:

Payment start date: 8/1/13
Term end date: 10/31/2025
Rent length in months: 144
1st months rent: $500,000 - payments are due at the beginning of the month and are paid monthly
Annual rent escalation: 3% - i.e. 1st 12 months is $500k/month, 2nd 12 months at $515K, etc.
Beginning NPV: $75M
Ending value: $0
Imputed annual interest rate: UNKNOWN

I'm not sure if this is relevant, but the monthly payment is allocated between principal and interest. Monthly interest expense is calculated as the current balance * (imputed interest rate / 12).

Currently, I've plugged the interest rate such that my ending balance is 0, however I was hoping to calculate it on the fly as opposed to manually plugging it.

how to calculate annual interest rate with these inputs? Is there a way to make the rate function work with payment increases?

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Effective Rate Calculation, Interest Only Loan

Aug 27, 2008

I have a calculation I do that calculates a clients "effective interest rate" if they make extra payments towards principal.. Calculation works fine.. However, I am now trying to figure out how to amend that code if it's an interest only loan, anyone have any ideas?

Here is the effective rate calcs on a random normal amortization loan:

this is in B2, and answer is 7%
=RATE(B4*B5,-((B3+B7)/B6),B7)*12

B3 = Total*Interest 279017.8
B4 = #*Years*in*Loan 30
B5 = #*Payments*/*Year 12
B6 = Total*Payments 360
B7 = Beginning*Principal 200000
B8 - Ending*Balance 0
problem is when someone is on an interest only loan they pay more interest than a normal amortization because they are not reducing the principal in the first x number of years. So I need to compare the interest only effective rate to an interest only loan.

Here is the example I'm working on... A client's loan is the following:
Loan amount - 131,538
interest rate - 6.15
30 year amortization
10 years interest only

normal client would pay an interest only payment of 674.13, then after i/o period would go to 953.80 for last 20 years of the loan, and they'd pay about $178k in interest.. Now if that client pays an extra 1,000 per year, I can calculate the amount of interest they'd accrue, but have no clue how to back into the "effective interest rate", basically that says you are paying the same amount of interest as someone with a x.xx% interest only loan.

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Finding Interest Rate Using Loan Constant - Iterative Calculation

Apr 9, 2014

I have a created a Data Chart Below. A - C are the columns and 1-7 are the rows. I have hard-coded the equation in cell B5 that I am using.

What I want to do is input an number into B3 that automatically makes Cell B5 equal to Cell C1. Is there a process in excel you can use to do this. Or do you just have to use trial and error?

A B C
1Loan Amount$10,500,000 0.0730041581143804
2Term 10 years
3Rate
4Amortization30 years
5Constant (K) =PMT(B3/12,(B4*12),-1000)*0.012
6Annual Payment$766,544
7Monthly Payment$63,879

Example is attached.

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Interest Calculation On Loan Compounding Yearly Want For Selected Months

Jan 26, 2014

I have created a excel sheet here i want the total interest charged for three months in 3rd mnth interest charged column, if i select 7 mnths term total interest charged for 7 months should come in 7th month interest charged colum, if it is 13 months total interest for 12 months in 12th month interest column and remaining 1 month interest in 13th month interest charged column

INTEREST CAL.xlsx

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Calculate Of Interest With Different Interest Rates Per?

Dec 29, 2013

I have a problem calculating a total interest for an input period that has different interest rates. You can see the attached file: INTEREST.xls

I have used a function but the result comes out wrong. Can I fine tune it or do I have to change my method of calculating.

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Interest Functions

Dec 3, 2005

The file I am working with is available here

(1) I need to work out the value of 2 years worth of interest on a loan - details would be

Loan = 30,180.00
interest = 14.90% pa (calculated daily)
term of loan would be 60 months

I am currently using an ammortisation speadsheet which calculates the interest per month etc ... at this time I simply highlight and calculate the interest which would be two years worth ...

the problem is this calculation varies from the bank interest calculations (although the repayments are the same and the total interest payable amounts are the same)

The banks calculations are said to be done on the basis that the minimum monthly repayment is met and there are no additional fees thrown in ... so I cant understand the difference ...

(2) In addition to the above question, but working on the same loan, traditionally amortisation tables calculate the amount of the repayments, the interest component and the principal component ... some include a column where you can factor in additional repayments on a row by row basis (like the one I am referring to) the table assumes that the payment is made on the due date ...

what I would like to be able to do is
(a) insert the actual payment dates
(b) if no payment is recorded for that period, automatically insert an overdue fee

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Interest Over 'X' Months

Mar 20, 2008

I'm trying to find a formula that will give me the following:

Rent is $2.00 a month with a 3% escalation each year. What is my Rent after 5 years?

Now the other thing is that I need the number of years to be a formula that counts the number of columns with data up to the column with $0.00.

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Compounding Interest

May 6, 2008

attached the spreadsheet that I need help with in that same thread. Please check out the spreadsheet via: [url]

Here's my issue:

I'm trying to be debt free roughly around 10-11 years years based on my current plan. SO, what I am trying to do is figure out what I can do with my savings at 1, 2, and a 3 % rate of return in a savings account that is compounded monthly after that debt free point. My time frame for results are 5-10-15-and 20 years.

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Nov 18, 2008

I have a person who was paid £1000 pension pa for ten years. I've found out that the pension should have been split 50/50 with half increasing by 5% pa. Thus in year 1 total pension would be £1000. In year 2 the total pension would be £1025 ((£500 x 1.05) plus £500)

I know that in year 10 the total pension should be £500 (non increasing) plus £814 (£500 x 1.05 to the power of ten). My problem is how do I work out a formula which calculates the total arrears due in year ten? I'm thinking the arrears due after the ten years is £314 but something is telling me it's a lot more.

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Sep 9, 2009

I have created a template that I use to determine interest calculations (it is based on simple daily interest, but monthly compounding and adjusts for any variations in interest rates during the month), and it seems to work fine so far.

However, I am trying to make it better and would like to eliminate as much manual input as possible. I have attached an example of the template to help explain what I would like to achieve

The Running Balance is dependant on column "J" - Interest for the Month. At the moment, I am manually adding up interest accumulated for the month, however if I add one cell too high or miss a cell when adding, it can lead to compounded problems further down. So in short I am looking for a method that would automatically calculate "interest for the month" by adding all the amounts in column "I" (Interest Daily) at month end for that month only (dates are entered in Column B)

In the attached template, grey areas indicate capital movements and/or interest rate changes that may occur during a month (ie movement in the month in question that affects the daily interest calculated)

I hope I've covered everything!

Any help in this regard comes most appreciated. If anything is unclear, I will do my best to explain what I am trying to achieve in greater detail.

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Aug 6, 2006

I have a column of years and a column of numbers representing annual
amounts placed in a savings account for the year. I would like to calculate
the balance of interest earned added to the balance of the account and then
calculate the interest earned on the accumulating amounts each year. The
results would be the account balance displayed in an adjoining column. So
far, I have not found a worksheet function for that. Could someone point me
in the right direction? Perhaps there should be several columns of data?

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Oct 13, 2011

How can I find the total of interest (or and expense) during a given calendar range

Data is as follows

Date Type Amount
4/1/11 Interest 4.00
4/15/11 charge 22.00
5/1/11 interest 3.00

I want a cell to compute the interest in april only.

I have tried =sumif(range, end date, amount_range)- sumif(range, beg date, amount_range)

but how do I nest the type argument into the argument

Possible approaches advanced filter? and function? add another column that uses an if statement to do interest only and do the sumif statement above I was hoping to have a drop down box that could have interest, COGS, beside it and april, may, june above it

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Mar 6, 2007

Is there a function that calculates what interest rate is needed to turn a $2000 investment into $9000000 in 30 years based on compounding interest?

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Dec 10, 2007

I am trying to set up a budget for my self. Of course I am trying to make it as complicated as possible.

I have done searches online and that is how I found this forum. I am finding amortization formulas, but not what I want

Here is my question.

I have two fields, Mortgage and auto loan

I want to have a field that does a calculation for me.
I know following fields as an example making numbers up
Interest rate is fixed at 5.5%
Amount left on loan is 150,000
Loan is fixed at 30 years with 28 years left

I want to run a formula so when I make a monthly payment of 1000 dollars how much of that goes to interest, how much to principle (not to make this complicated even more, but let say that I have 200 escrowed which I am not sure if that has interest calculated on(I don’t think so as it is property tax?))

Same example for car loan.
5 year loan, 4.5% interest, payment 438 a month.

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Aug 31, 2008

does anyone know how to calculate the interest so it matches this? .......

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Jan 12, 2010

Sample data:

02-06-09 to 18-06-09 earned $2500
19-06-09 to 23-08-09 earned $3500
24-08-09 to 31-12-09 earned $4500

I am thinking if there's a formula that can calculate the interest earned for each month from Jun-09 to Dec-09.

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Aug 24, 2006

I have been raken by brain for a simple formula to calculate an Interest Only Payment on a mortage note, example,

sales price = $162000
term = 360
interest = 8.5

I was able to calculate the payment of principle and interest, but I need to validate what would be an Interest Only payment on this?

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Dec 1, 2006

I'm an amateur to macro as I'm only in a low level class at a university... But I'm attempting to make a macro for a bank interest calculator. It asks your type of account(which then assigns an interest rate to it), how much money is in the account, and also how long th emoney will be in the account. I used a "Select Case" for the account types, but I seem to be struggling for it to work, it won't put the value of the total into the assigned cell, or it's just not computing it(as I get "0" each time I run it)...

Public Function BankCalculator()
'Bank Calculator for different accounts
'declare variable
Dim shtBank As Workbook, strAct As String, intMon As Integer, strLong As Integer, intTotal As Double
Set shtBank = Application.Workbooks("Bank Calculator.xls")
'input box for amount of money, assign address
intMon = InputBox(prompt:="How much money do you currently have in the account?", _ ......................................

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Jun 30, 2007

I am trying to create a calculator based on a worksheet I have. I do not know how to write a formula for simple interest calculations and for compound interest calculations.

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Jun 29, 2008

I have this sheet at work which contains a bunch of courses my employer runs, alongwith the dates and other details (which spans columns A through O)

Course-rows which require action/follow-up are highlighted with a certain color. The "completed" course-rows have no fill.
Note: the courses requiring action may have a past date, the only distinguishing feature is the highlight color.

Is there any way by which i could generate a pop-up box of some sort which would display the "highlighted" rows (maybe from A through I or something).

I could add 'follow-up' flags on another column if the highlight color won't do.

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Aug 14, 2008

Following is the excel database. B11 is the dropdown menu. When I select the team from drop down menu. it shud give me sorted Name list from B12. I tried the following formula: =IF(INDEX($C3:$E$11,MATCH($C$12,$D3:$D$11,0),2)=$C$12,INDEX($C3:$E$11,MATCH($C$12,$D3:$D$11,0),1)," ")

But it is repeating the name or leaves the cell blank ( which i don't want). When I select Team1 it shud give me Names : a,d,e (without blank cell), Even i tried Array and some vba programmimg but it ...........

ABC
1SrNameTeam
21aTeam 1
32bTeam 2
43cTeam 3
54dTeam 1
65eTeam 1
76fTeam 3
87gTeam 3
98hTeam 4
10
11Team 2
12b
13b
14#N/A
15#N/A
16#N/A

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Nov 8, 2008

Some years ago I came across a formulae to calculate Daily Interest on a Building Society Savings account in the UK. I have used this since but find my calculations never work out the same as my BS, although to my advantage! It is =B3*B4/360*DAYS360(B5,B6,TRUE) Where:

B3=Capital
B4=Interest Rate
B5=Starting Date
B6=Finishing Date

For some reason the formulae uses 360/year and not 365/year. Using both still gives wrong answer.

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May 10, 2009

=IF(AND(ISBLANK(A3),NOT(ISNUMBER(I3))),"",IF(TODAY()-A3>=30,G3*0.5%,"$0.00"))
How can I keep H from working if there is a negative balance in G? This will create negative interest.

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Oct 21, 2009

I use Excel 2007 , I created Interest calculator , on Daily basis , to caluculate interest , compounded quarterly.

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A3 = Principal Amount
B3 = Date of Investment
C3 = Interest as on Date
D3 = Number of Days , amount Invested {comes out of formula set}
E3 = Rate of Interest

Now in F3 I want the Interest amount , compunded quarterly.

Some times NUMBER OF INVESTED CAN BE LESS THAN 90 DAYS TOO...then what ?

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Sep 22, 2011

I am trying to work out a formula to calculate compounded interest rates.

I have a table that is 24 columns wide (months).

1 row that will have amounts input in to the columns (these will be different amounts)

I want to have a row along the bottom that calulates the compounded interest at a fixed interest rate on the total amount that is in the first row.

I have managed to do this using a table but surely there is a formula for this as the table can become very troublesome if the input amounts change.

Ive added an image (attached) : excel.jpg‎

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find attached herewith a sample file.

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