Sources & assumptions

Outside facts support the inputs. They do not decide the verdict.

ShouldISpend uses outside sources when a page relies on market-cost benchmarks, consumer rules, definitions, or other facts that do not come from the user's own numbers. The pressure framework itself is explained in the methodology.

How sources are used

A source may support a cost range, a definition, or a rule used for context. It does not mean the source endorses ShouldISpend, and it does not turn a general calculator into personal financial, legal, medical, tax, or insurance advice.

Source dates are tracked so assumptions can be reviewed when underlying figures change. Calculator pages should identify the relevant source when a specific outside figure materially affects the page.

Baby & Parenting

Baby & Parenting source set

National Database of Childcare Prices

U.S. Department of Labor Women’s Bureau

County-level childcare price context by provider type and child age.

Verified for ShouldISpend: 2026-09-24

Open source →
Groceries

Groceries source set

USDA Food Plans: Monthly Cost of Food Reports

U.S. Department of Agriculture

Food-at-home budget benchmarks and monthly food-plan costs.

Verified for ShouldISpend: 2026-09-23

Open source →
Funeral Costs

Funeral Costs source set

NFDA Funeral Cost Statistics

National Funeral Directors Association

National median funeral and cremation cost context.

Verified for ShouldISpend: 2026-09-23

Open source →
Medical

Medical source set

Know Your Medical Bill Rights

Centers for Medicare & Medicaid Services

Good-faith estimates, billing protections, and dispute guidance.

Verified for ShouldISpend: 2026-09-23

Open source →
Rent

Rent source set

Rent Burden in the Housing Choice Voucher Program

U.S. Department of Housing and Urban Development

Housing-cost burden thresholds and the historical 30% benchmark.

Verified for ShouldISpend: 2026-09-23

Open source →
College

College source set

Financial Aid Dictionary: Cost of Attendance

Federal Student Aid

Cost-of-attendance and net-price definitions.

Verified for ShouldISpend: 2026-09-23

Open source →
Cars

Cars source set

How Much Can I Afford to Borrow for a Car or Auto Loan?

Consumer Financial Protection Bureau

Total vehicle cost, loan terms, insurance, maintenance, and monthly budget context.

Verified for ShouldISpend: 2026-09-23

Open source →
Emergency Savings

Emergency Savings source set

An Essential Guide to Building an Emergency Fund

Consumer Financial Protection Bureau

Emergency-fund purpose, examples of unplanned expenses, goal-setting, safe storage, rebuilding after use, and guidance that the appropriate amount depends on the household situation.

Verified for ShouldISpend: 2026-09-26

Open source →

Preparing for Tax Season?

Federal Deposit Insurance Corporation

Emergency-savings planning and the general three-to-six-month expense range, while noting that the appropriate amount depends on income, expenses, and household size.

Verified for ShouldISpend: 2026-09-26

Open source →
Debt

Debt source set

What Is a Debt-to-Income Ratio?

Consumer Financial Protection Bureau

Debt-to-income definition and the standard calculation using monthly debt payments and gross monthly income.

Verified for ShouldISpend: 2026-09-26

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Budget Rules

Budget Rules source set

Assess Your Spending

Consumer Financial Protection Bureau

Monthly spending categories, irregular-expense review, savings contributions, and comparison of spending with take-home pay.

Verified for ShouldISpend: 2026-09-26

Open source →
Parental Leave

Parental Leave source set

Family and Medical Leave Act

U.S. Department of Labor

Federal FMLA eligibility context, up to 12 workweeks of qualifying job-protected leave, unpaid-leave rules, and continuation of group health benefits for eligible employees.

Verified for ShouldISpend: 2026-09-26

Open source →
Adoption

Adoption source set

The Adoption Home Study Process

Child Welfare Information Gateway

Home-study process and cost context, including differences between foster-care adoption and private-agency or independent home studies.

Verified for ShouldISpend: 2026-09-26

Open source →

Regulation of Private Domestic Adoption Expenses

Child Welfare Information Gateway

State-law context for allowable and regulated private domestic adoption expenses.

Verified for ShouldISpend: 2026-09-26

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Flights

Flights source set

Average Domestic Airline Itinerary Fares

Bureau of Transportation Statistics

U.S. domestic itinerary-fare benchmarks, including ticket value and the distinction between mandatory ticket charges and optional service fees.

Verified for ShouldISpend: 2026-09-26

Open source →

Buying a Ticket

U.S. Department of Transportation

Airfare comparison, total-price disclosure, baggage and optional-service fee context, fare restrictions, and ticket flexibility.

Verified for ShouldISpend: 2026-09-26

Open source →
Rental Cars

Rental Cars source set

Renting a Car

Federal Trade Commission

Rental-car total-cost factors including taxes, airport surcharges, fuel, mileage, tolls, equipment, additional drivers, insurance options, and card holds.

Verified for ShouldISpend: 2026-09-26

Open source →
Travel Insurance

Travel Insurance source set

Travel Insurance

National Association of Insurance Commissioners

Travel-insurance coverage context, common cancellation and delay risks, and an industry benchmark that policies generally cost about 5% to 10% of total trip price.

Verified for ShouldISpend: 2026-09-26

Open source →
Road Trips

Road Trips source set

Choosing the Right Vehicle for Your Next Road Trip Can Save Fuel and Money

U.S. Department of Energy

Road-trip fuel-cost methodology using route distance, vehicle fuel economy, fuel prices, and city/highway driving mix through the FuelEconomy.gov Trip Calculator.

Verified for ShouldISpend: 2026-09-26

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Travel Benchmarks

Travel Benchmarks source set

Per Diem Rates

U.S. General Services Administration

Location-specific official-travel lodging and meals-and-incidental reimbursement benchmarks for the continental United States; useful as a reference point, not a consumer-vacation price guarantee.

Verified for ShouldISpend: 2026-09-26

Open source →

Meals and Incidental Expenses Breakdown

U.S. General Services Administration

Official meal-and-incidental reimbursement tiers and breakfast, lunch, dinner, and incidental component breakdowns for CONUS travel.

Verified for ShouldISpend: 2026-09-26

Open source →
Home Maintenance

Home Maintenance source set

How to Build Your Maintenance and Repair Budget

Fannie Mae

Home-maintenance and repair reserve planning, including the 1% to 4% of home value annual rule-of-thumb range and higher reserve needs for older homes.

Verified for ShouldISpend: 2026-09-26

Open source →

Fixing Up Your Home and How to Finance It

U.S. Department of Housing and Urban Development

Home repair and improvement planning, cost-awareness, contractor estimates, financing considerations, and the importance of regular maintenance.

Verified for ShouldISpend: 2026-09-26

Open source →
Foreign Travel Benchmarks

Foreign Travel Benchmarks source set

Foreign Per Diem Rates

U.S. Department of State Office of Allowances

Official-government foreign travel reimbursement benchmarks with separate maximum lodging and meals-and-incidental components, updated monthly; useful as a destination cost reference rather than a consumer-vacation price guarantee.

Verified for ShouldISpend: 2026-09-26

Open source →
Hawaii Travel Benchmarks

Hawaii Travel Benchmarks source set

OCONUS Per Diem Rates

Defense Travel Management Office

Official non-foreign OCONUS lodging, meal, and incidental reimbursement benchmarks, including Hawaii locality rates; useful as a planning reference rather than a leisure-travel quote.

Verified for ShouldISpend: 2026-09-26

Open source →
Mold Remediation

Mold Remediation source set

A Brief Guide to Mold, Moisture and Your Home

U.S. Environmental Protection Agency

Residential mold cleanup and moisture-control guidance, including the EPA rule of thumb that areas under about 10 square feet can often be handled by homeowners while larger or extensive water-damage cases may warrant professional guidance.

Verified for ShouldISpend: 2026-09-26

Open source →

Mold Cleanup in Your Home

U.S. Environmental Protection Agency

Residential cleanup scope, moisture-source correction, contractor experience, contaminated-material handling, and circumstances in which professional remediation should be considered.

Verified for ShouldISpend: 2026-09-26

Open source →
Moving

Moving source set

Protect Your Move

Federal Motor Carrier Safety Administration

Interstate household-goods moving preparation, mover verification, required consumer documents, and rights and responsibilities when hiring a mover.

Verified for ShouldISpend: 2026-09-26

Open source →

What is a binding move estimate?

Federal Motor Carrier Safety Administration

Written interstate moving estimates, binding versus non-binding pricing, accessorial charges, inspection requirements, and the 110-percent delivery-payment rule for non-binding estimates.

Verified for ShouldISpend: 2026-09-26

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Summer Camp

Summer Camp source set

How to Afford Camp

American Camp Association

Summer-camp price variation, typical weekly fee ranges, scholarship options, and the need to compare program type and family budget rather than rely on one national price.

Verified for ShouldISpend: 2026-09-26

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Disney Vacation

Disney Vacation source set

Walt Disney World Theme Park Tickets

Walt Disney World Resort

Current official Walt Disney World ticket structure, date-based pricing, multi-day ticket options, taxes, special offers, and the fact that admission pricing varies by date and product.

Verified for ShouldISpend: 2026-09-26

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Wedding Costs

Wedding Costs source set

The Average Wedding Cost, According to The Knot Data

The Knot

2025 U.S. wedding-spend benchmarks from the 2026 Real Weddings Study, including total cost and itemized averages for venue, catering, photography, planning, music, flowers, stationery, alcohol and other common vendors.

Verified for ShouldISpend: 2026-09-26

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Wedding Budget Breakdown, Based on Real Couples Data

The Knot

Wedding budget-allocation benchmarks by category from a survey of nearly 11,000 U.S. couples married in 2025, with context that location, guest count and priorities materially change actual spending.

Verified for ShouldISpend: 2026-09-26

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Destination Weddings

Destination Weddings source set

How Much Does a Destination Wedding Cost? Real Couples Share

The Knot

Destination-wedding vendor benchmarks including venue, planner, alcohol, flowers, rehearsal dinner, photography, catering and transportation, with domestic/international variation context.

Verified for ShouldISpend: 2026-09-26

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Wedding Bar

Wedding Bar source set

How Much Does Alcohol Cost for a Wedding?

The Knot

Wedding alcohol and open-bar benchmarks from the 2025 Real Weddings Study, including guest-count and regional ranges plus service-style cost factors.

Verified for ShouldISpend: 2026-09-26

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Rehearsal Dinner

Rehearsal Dinner source set

Average Cost of a Rehearsal Dinner Today

The Knot

Rehearsal-dinner cost benchmark and cost drivers based on The Knot Real Weddings Study, including venue, invitations, catering and decor.

Verified for ShouldISpend: 2026-09-26

Open source →

What a citation does not mean

National averages can differ from a local quote, insurance determination, school offer, or household budget. Use the cited figures as context, then replace them with the real numbers available for the decision whenever possible.