SAMPLE REPORT · REAL ENGINE OUTPUT
Rent vs Buy Analysis — Jersey City, NJ
This is a genuine DwellQ engine run for a Jersey City scenario — every section a Q+ report renders for this loan, in the report’s own words, at full depth. The tax chain, the amortization detail and the year-by-year tables are all on this page; the PDF is the same report in downloadable form. Your report uses your numbers.
VERDICT
Buying wins — about $160K ahead by year 10, break-even in year 2.8.
This scenario assumes 5.8%/yr home appreciation — 2.8 points above DwellQ’s 3% long-run default (FHFA HPI). A lower rate narrows the gap.
That year 2.8 break-even is the Q+ figure — tax modeling pulls it forward. Without tax deductions (the free tier), the same scenario breaks even in year 3.4.
Tax Impact on Your Decision
Your estimated $27,061 in tax savings (Year 1: $4,855; avg $2,706/yr over 10 years) moved the margin to $159,520 in buying’s favor. Run without tax modeling — the free tier — the same inputs break even in year 3.4 instead of year 2.8.
Your situation
Your Rent Situation
Home You’re Considering
Assumptions
Tax Modeling
Tax projections are based on current federal tax law, including the SALT cap ($40,804 in year 1 of this analysis; adjusts annually under 2025 OBBBA and is scheduled to sunset in 2030). Tax rules are subject to legislative change. Consult a tax professional before making financial decisions.
Tax Detail — Year 1
The full deduction chain the report runs every year: what is deductible, what the SALT cap allows, whether itemizing beats the standard deduction at all, and what the difference is actually worth in tax.
Itemized Deduction Components
Itemize vs Standard
SALT cap analysis
In year 1 this household’s state and local taxes total $18,406 against a cap of $40,804 — nothing is lost, so all $18,406 counts. That does not hold. The cap is scheduled to fall in 2030, and by year 10 of this analysis SALT has grown to $24,677 against a $10,000 cap — $14,677 of it disappears. That is why the annual benefit falls from $4,855 in year 1 to $1,323 in year 10, and the report models it year by year rather than multiplying year 1 by 10.
Deductions are also credited a year late — you claim them when you file. Year 1 carries the full cost of owning and the savings start appearing in year 2, which is why the Tax Sav column below is shifted by one row.
Monthly cost, component by component
Year 1, per month — the Annual Cost Breakdown below divided by twelve, so the two always agree.
Buying — $3,962/mo
Renting — $2,815/mo
By year 10, 3%/yr rent growth carries this to $3,668/mo while the owner’s payment reaches $4,738/mo — the gap the whole comparison turns on.
Rows are shown rounded to the dollar; totals are computed from exact figures and may differ by a few dollars.
Where Your Money Goes
Every dollar of cash out, across the whole 10-year horizon.
Renting — Total: $389,986
Buying — Total: $650,709
Rows are shown rounded to the dollar; totals are computed from exact figures and may differ by a few dollars. Owning costs $260,723 more in cash over 10 years — the case for buying here is what that cash buys, not that it is cheaper.
How Each Net Worth Is Built
Renter Net Worth: $404,347
Buyer Net Worth: $563,867
The renter never spends the down payment or closing costs, so $129,250 starts invested at 7%/yr and the monthly cost gap is added on top — that is the $132,250 of upfront cash less the $3,000 of move-in and move-out costs the renter really does pay. The buyer’s side is equity: $1,010,473 of home value less $385,977 still owed and $60,628 of selling costs.
Net worth, year by year
■ Buying ■ Renting & investing · values in $K
| Year | Buying | Renting & investing |
|---|---|---|
| 1 | $117K | $152K |
| 2 | $156K | $172K |
| 3 | $198K | $193K |
| 4 | $242K | $215K |
| 5 | $288K | $241K |
| 6 | $337K | $270K |
| 7 | $389K | $300K |
| 8 | $444K | $332K |
| 9 | $502K | $367K |
| 10 | $564K | $404K |
Key Figures
Affordability
Measured against the $140,000 MAGI above, using the report’s own bands: housing over 28% of income reads Caution, over 35% High; DTI over 36% Caution, over 43% above the conventional limit.
Buyer Snapshot: Year-by-Year
Amortization and equity build, one row per year — payment, principal and interest split, home value, loan balance, net equity and LTV.
8 columns — scroll the table sideways for the rest.
| Yr | Pmt/mo | Principal | Interest | Home Value | Loan Bal | Equity | LTV% |
|---|---|---|---|---|---|---|---|
| 1 | $3,962 | $5,544 | $27,907 | $608,350 | $454,456 | $117,393 | 79.1% |
| 2 | $4,030 | $5,892 | $27,559 | $643,634 | $448,564 | $156,452 | 78.1% |
| 3 | $4,102 | $6,262 | $27,189 | $680,965 | $442,302 | $197,805 | 77% |
| 4 | $4,178 | $6,654 | $26,796 | $720,461 | $435,648 | $241,586 | 75.9% |
| 5 | $4,259 | $7,072 | $26,379 | $762,248 | $428,576 | $287,937 | 74.6% |
| 6 | $4,344 | $7,516 | $25,935 | $806,458 | $421,060 | $337,011 | 73.3% |
| 7 | $4,434 | $7,987 | $25,464 | $853,233 | $413,073 | $388,966 | 72% |
| 8 | $4,530 | $8,488 | $24,963 | $902,720 | $404,585 | $443,972 | 70.5% |
| 9 | $4,631 | $9,021 | $24,430 | $955,078 | $395,564 | $502,209 | 68.9% |
| 10 | $4,738 | $9,587 | $23,864 | $1,010,473 | $385,977 | $563,867 | 67.3% |
| TOTAL | $74,023 | $260,486 |
PMI never applies on this run, and the reason is the down payment, not the LTV curve: the engine charges mortgage insurance only when the down payment is under 20% (its needsPMI rule), and this run puts 20% down. That is why Total PMI Paid reads $0above rather than being left out. LTV, shown against the original purchase price of $575,000 rather than the projected value, starts at 80.0% and ends at 67.3%.
Annual Cost Breakdown
Thirteen columns, every year: the Q+ view, with the tax saving applied and the net cost of owning beside the cost of renting.
13 columns — scroll the table sideways for the rest.
| Yr | Princ | Interest | Prop Tax | Maint | Insur | HOA | PMI | Util | Buy Gross | Tax Sav | Buy Net | Rent Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Upfront | — | — | — | — | — | — | — | — | $132,250 | — | $132,250 | $3,000 |
| 1 | $5,544 | $27,907 | $9,488 | $2,875 | $1,725 | $0 | $0 | $0 | $47,539 | — | $47,539 | $33,780 |
| 2 | $5,892 | $27,559 | $10,038 | $3,042 | $1,825 | $0 | $0 | $0 | $48,356 | −$4,855 | $43,501 | $34,788 |
| 3 | $6,262 | $27,189 | $10,620 | $3,218 | $1,931 | $0 | $0 | $0 | $49,220 | −$4,912 | $44,308 | $35,826 |
| 4 | $6,654 | $26,796 | $11,236 | $3,405 | $2,043 | $0 | $0 | $0 | $50,134 | −$4,972 | $45,162 | $36,896 |
| 5 | $7,072 | $26,379 | $11,888 | $3,602 | $2,161 | $0 | $0 | $0 | $51,102 | −$2,155 | $48,947 | $37,997 |
| 6 | $7,516 | $25,935 | $12,577 | $3,811 | $2,287 | $0 | $0 | $0 | $52,126 | −$2,037 | $50,089 | $39,132 |
| 7 | $7,987 | $25,464 | $13,307 | $4,032 | $2,419 | $0 | $0 | $0 | $53,209 | −$1,911 | $51,298 | $40,300 |
| 8 | $8,488 | $24,963 | $14,078 | $4,266 | $2,560 | $0 | $0 | $0 | $54,355 | −$1,777 | $52,578 | $41,504 |
| 9 | $9,021 | $24,430 | $14,895 | $4,514 | $2,708 | $0 | $0 | $0 | $55,568 | −$1,635 | $53,933 | $42,743 |
| 10 | $9,587 | $23,864 | $15,759 | $4,775 | $2,865 | $0 | $0 | $0 | $56,850 | −$1,484 | $55,366 | $44,020 |
| TOTAL | $74,023 | $260,486 | $123,886 | $37,540 | $22,524 | $0 | $0 | $0 | $650,709 | −$27,061 | $623,648 | $389,986 |
Why the Tax Sav column doesn’t add up to its total. Deductions arrive a year late — you claim them when you file. Year 1 gets none, Year 2 gets Year 1’s, Year 3 gets Year 2’s, and so on down the column. That leaves Year 10’s deduction ($1,323) arriving after this table ends: the TOTAL counts it, no row shows it. And because Buy Net is Buy Gross minus Tax Sav, its total inherits the same $1,323 gap with the opposite sign — a lower net cost, not a higher one.
Renter Investment Portfolio
The other side of the comparison, modeled just as carefully: what the renter’s un-spent capital does at 7%/yr.
5 columns — scroll the table sideways for the rest.
| Year | Starting Capital | Cost Gap | Inv. Returns | Net Worth (pre-tax) |
|---|---|---|---|---|
| 1 | $129,250 | $13,758 | $9,484 | $152,492 |
| 2 | $129,250 | $22,471 | $20,434 | $172,155 |
| 3 | $129,250 | $30,953 | $32,754 | $192,956 |
| 4 | $129,250 | $39,219 | $46,523 | $214,992 |
| 5 | $129,250 | $50,169 | $61,919 | $241,338 |
| 6 | $129,250 | $61,127 | $79,160 | $269,537 |
| 7 | $129,250 | $72,125 | $98,376 | $299,751 |
| 8 | $129,250 | $83,199 | $119,710 | $332,159 |
| 9 | $129,250 | $94,389 | $143,315 | $366,954 |
| 10 | $129,250 | $105,735 | $169,362 | $404,347 |
Starting Capital is the down payment plus closing costs the renter never spent — a constant, by definition. Net Worth is shown pre-tax.
Bottom Line
Based on these inputs, buying is projected to build $159,520 more in net worth over 10 years. The paths are projected to cross around Month 34 (Year 2.8). Tax deductions are estimated to save $27,061 over the period. Each year’s deductions are claimed when you file, so they are credited from the following January — Year 1 carries the full cost of owning and the savings appear from Year 2 onward.
Key sensitivities: Home appreciation has the largest impact on this outcome. Each +1% in annual appreciation is typically worth $58K+ over 10 years. Mortgage rate, investment returns, and selling costs are the next most impactful variables.
Also in every Q+ report
This scenario is a 30-year fixed loan with no refinance and no capital-gains exit modeled, so the engine does not run these three sections here. Rather than invent numbers for them, here is when they appear:
Assumptions: 3%/yr rent growth · 7%/yr investment return · 1.65% property tax · 5.8%/yr appreciation · 6% selling costs · Sources: Zillow ZORI · U.S. Census ACS · FRED · Illustrative scenario — not financial advice.
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