← Back to Projects

Swedish Mortgage Calculator

hobby
JavaScript HTML CSS

I was checking banks and their calculations, but they weren't enough for me. I wanted to understand how much I should amortize, what if I invested the difference by paying less amortization, etc. These were the questions in my mind, and I had to build this simple calculator app to give an idea of what the financial outcome would be in different scenarios.

The calculator uses Scenario A as the baseline for comparison. When Scenario A pays off the loan, we compare how Scenarios B and C would look at that same point in time - showing you the trade-offs between paying down your mortgage faster versus investing the difference.

Disclaimer: This calculator is for informational purposes only and does not constitute financial advice. All calculations and monthly costs are shown before tax (except where tax benefits are explicitly noted). Please consult with a qualified financial advisor before making any investment or mortgage decisions.

Scenario A: Pay Down Faster -

Pays off mortgage fastest.

Enter your amortization rate

Swedish Amortization Rules

Your Current Situation
LTV (Loan-to-Value): - -
LTI (Loan-to-Income): - -
Total Minimum Required: -
Complete Rules Breakdown
LTV-Based Requirements
LTV > 70% → 2% per year
LTV 50-70% → 1% per year
LTV < 50% → 0% per year
LTI-Based Requirements
LTI > 4.5x → +1% per year
LTI ≤ 4.5x → No additional requirement
Interest: -
Tax benefit: -

Swedish Tax Benefit (Ränteavdrag)

In Sweden, you receive 30% of your mortgage interest back as a tax deduction.

How it works:

  • The tax benefit is automatically calculated when you file your tax return
  • This amount will be refunded after each tax year
  • The monthly amount shown is for informational purposes to help you understand your effective interest cost
Amortization: -
Investment: 0 kr
Mortgage Cost: -
+ Monthly Fee: -
Total Monthly: -

Scenario A: Payment Schedule

Month Interest Amortization Investment Inv. Value Total
Total - - - - -

Scenario B: Invest the Difference -

Lower amortization + invest the difference

Interest: -
Tax benefit: -
Amortization: -
Investment: -
Mortgage Cost: -
+ Monthly Fee: -
Total Monthly: -

Scenario B: Payment Schedule

Month Interest Amortization Investment Inv. Value Total
Total - - - - -

Scenario C: Hybrid Approach -

Custom amortization + custom investment

Amount to invest each month
Interest: -
Tax benefit: -
Amortization: -
Investment: -
Mortgage Cost: -
+ Monthly Fee: -
Total Monthly: -

Scenario C: Payment Schedule

Month Interest Amortization Investment Inv. Value Total
Total - - - - -

Comparison at Scenario A Payoff Time

Scenario A: At Payoff (-)

(-% Amortization, - payments)

Amortization Paid: -
Interest Paid: -
Total Paid: -

Scenario B: At Same Time

(-% Amortization, - payments)

Paid Amortization: -
Paid Interest: -
Remaining Debt: -
Investment Value: -
Financial Position: -

Scenario C: At Same Time

(-% Amortization, - payments)

Paid Amortization: -
Paid Interest: -
Remaining Debt: -
Investment Value: -
Financial Position: -

At Full Payoff Time

Scenario B: At Full Payoff (-)

(-% Amortization, - payments)

Amortization Paid: -
Interest Paid: -
Total Paid: -
Investment Value: -

Scenario C: At Full Payoff (-)

(-% Amortization, - payments)

Amortization Paid: -
Interest Paid: -
Total Paid: -
Investment Value: -