Fairfax County, VA benefit calculators
Government rules are complicated. These calculators focus on Fairfax County, Virginia programs and local housing voucher zones, with plain explanations and official links.
Try a work scenario now
Drag the sliders to see how rate and hours change your estimated take-home, total income with benefits, and benefit risk. Your inputs stay in your browser only if you choose to save them — no accounts required.
Est. take-home is shown as gross here (no tax estimate applied on the homepage). HCV headroom and 30% AMI used are shown so you can see how much room you have before common assistance limits. Your actual taxes depend on filing status, deductions, credits, and state. Open the full Work Scenario Calculator to enter your exact SSDI/SSI, Medicare, voucher, and TWP months.
How these numbers are calculated
Monthly gross: rate × hours/week × (52 weeks ÷ 12 months)
Est. take-home: shown as gross here (tax not subtracted on the homepage).
Total w/ benefits: take-home + Medicare Part B + voucher subsidy.
Gain vs. support: total with benefits − (SSI + Medicare Part B + voucher).
HCV headroom: 30% AMI annual limit − (monthly gross × 12).
Benefit risk: based on gross monthly pay vs. the 2026 TWP ($1,210) and SGA ($1,690) thresholds.
These are planning estimates only. Verify with SSA, HUD, or your local housing program before acting.
Start here
🏠 Fairfax Housing / Voucher
Estimate your tenant share and voucher subsidy. Pick a Fairfax County ZIP code to auto-select the RealMarket Blue/Green/Yellow zone.
Estimate housing🧮 Work Scenario
Enter an hourly wage and weekly hours. See estimated take-home pay, where SSDI/SSI work rules kick in, and whether a housing voucher could be at risk.
Open work calculatorUnderstand the rules
📊 Income Limits
Enter an area median income and household size to see 30%, 50%, and 80% AMI thresholds.
Look up limits🗓️ SSDI Work Timeline
Visual guide to Trial Work Period, Extended Period of Eligibility, and Medicare continuation.
View timeline🎂 Retirement Age
Find your Full Retirement Age and see how work earnings could affect benefits before and during your FRA year.
Check retirementPlan your money
💳 Debt Payoff
Compare avalanche vs. snowball payoff strategies and see total interest and months to debt-free.
Plan payoffReference
📚 Official Resources
Curated links to Social Security, HUD, SNAP, Medicare, Medicaid, and state programs — with plain descriptions.
Browse resources📖 Definitions
What is SGA? TWP? EPE? AMI? Short, simple explanations of every acronym used here.
Read definitionsHow to use this site
- Pick a calculator that matches your question.
- Replace the defaults with your real wage, rent, income, or household size.
- Read the risk labels to spot benefit-cliff moments.
- Click source links next to inputs to verify current government limits.
- Confirm with the agency before making decisions — these are estimates only.
No data is stored on our servers. Your inputs may appear in the URL so you can bookmark or share an estimate. You can optionally save your common defaults to this browser with the "Remember my defaults" checkbox on the Work calculator.