How Much Home Can I Afford?
By Samantha Shelton, Broker Owner & Mortgage Loan Originator at Align Lending (NMLS #2041154) · Updated August 2026
Quick answer
Affordability is best answered from the payment side. Pick the monthly amount you're comfortable with, subtract the estimated taxes, insurance and any mortgage insurance for the homes you're considering, and what remains supports principal and interest — which maps to a home-price scenario worth exploring. Rate assumption, down payment and property taxes move that scenario more than income alone.
Samantha's Take
Samantha Shelton · Broker Owner & Mortgage Loan Originator · NMLS #1647301
Comfortable payment versus maximum price
I ask about the comfortable payment before the maximum purchase price on purpose. The maximum is a math ceiling. The comfortable number is the one that survives a car repair, a daycare increase, and a slow month at work. Buyers who plan from that number almost never call me stressed in year two.
Why this matters
Payment-first planning keeps the tradeoffs visible. When you raise price, you can immediately see what it costs monthly instead of discovering it at closing.
The non-loan pieces of a payment — taxes, insurance, mortgage insurance, HOA — are property-specific. Two homes at the same price can produce different monthly totals.
A single rate assumption change reshapes the whole picture, which is why a scenario tool is more useful than one static number.
What changes the answer
- Rate assumption
- The assumption you model changes the principal-and-interest portion substantially.
- Property taxes
- Michigan millage differences can shift a monthly payment by hundreds of dollars at the same price.
- Down payment
- Changes the financed amount and whether mortgage insurance is part of the structure.
- Other monthly obligations
- Existing debts affect what a lender reviews and what feels comfortable to you.
A simple example
Working backward from a payment
| Target total monthly payment | $2,500 |
|---|---|
| Estimated taxes and insurance | $550 |
| Remaining for principal and interest | $1,950 |
| Resulting price scenario | Depends on rate assumption and down payment |
Assumptions: Example uses published planning assumptions for taxes and insurance, not a quote for any property. This is an educational scenario, not an offer, approval, or guarantee of qualification, rates, savings, or home values.
Try it with your numbers
Enter a payment or a price and watch every other number respond in real time.
OPEN ALIGN PAYMENT LABCommon questions
- Is there a standard percentage of income to use?
- Rules of thumb exist, but they ignore your actual obligations and goals. Planning from your own comfortable payment is more accurate.
- Does a bigger down payment let me buy more home?
- It can change the scenario, but it also reduces reserves. That tradeoff is worth modeling directly.
- What about closing costs?
- Estimated closing costs are separate from the down payment and should be part of your cash plan.