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How to calculate a remaining loan balance in Excel and Google Sheets

Topic:Finance basics
Excel & Google Sheets
=PV(A2/12,B2-C2,D2)

Verified example

Computed by a real spreadsheet engine on the sample data below.

Annual RateTerm (months)Payments MadeMonthly PaymentBalance
0.0636060-1199
0.04518036-1530
0.086012-2028
0.03524024-1160

=PV(A2/12,B2-C2,D2)186093.029944613

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Step by step

  1. 1Column A = Annual Interest Rate, Column B = Total Loan Term (months), Column C = Payments Made So Far, Column D = Monthly Payment (as a negative number).
  2. 2In E2 enter =PV(A2/12,B2-C2,D2) — this returns a negative number; wrap with ABS or negate: =-PV(A2/12,B2-C2,D2).
  3. 3Alternatively use =CUMPRINC(A2/12,B2,LoanAmount,1,C2,0) to sum only the principal paid and subtract from original loan.
  4. 4Verify: PPMT and IPMT functions can confirm the split at any payment number.

Tips

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Frequently asked

What is the difference between PV and CUMPRINC approaches?

PV calculates the remaining balance as the present value of future payments — simpler but requires knowing the payment amount. CUMPRINC sums the principal repaid and subtracts from the original principal — useful when you know the loan details directly.

How do I find the monthly payment if I only know the loan details?

Use PMT: =PMT(AnnualRate/12,TermMonths,-LoanAmount) which returns the regular payment amount.

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Formulas used

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