RENOVATION BUDGETS

Renovation Budget Planner

Build a whole-project spending plan, calculate tax and contingency separately, track payments, and identify whether the planned total exceeds your target.

Interactive estimate · Private on your device

Build your estimate

Change any number to refresh the results instantly.

Project details

All fields editable
Percentage from 0 to 100
Percentage from 0 to 100

All starter prices are illustrative user-editable inputs, NOT verified quotes or live market data. The currency switch relabels amounts; it never converts exchange rates.

YOUR PROJECT ESTIMATE Live calculation

Input values used

Measurements: imperial. Prices: USD (user-entered; no currency exchange).

Project focuswhole
Rooms in scope3
Materials12000
Labor10500
Permits allowance800
Removal and disposal700
Other project costs1500
Contingency (%)15
Tax on materials + labor (%)0
Payments made2000
Target budget30000

Estimated project total

$29,325.00

Number of rooms3 rooms
Subtotal before tax and contingency$25,500.00
Target budget$30,000.00
Remaining against target$675.00
Estimated unpaid balance$27,325.00
Payments made$2,000.00

Cost breakdown

Materials$12,000.00
Labor$10,500.00
Permits$800.00
Removal and disposal$700.00
Other project costs$1,500.00
Contingency on pre-tax subtotal$3,825.00
Tax on materials + labor only$0.00

Calculation assumptions

  • Contingency and tax are calculated independently on specified bases: no tax on contingency, no contingency on tax.
  • Payments reduce what remains payable, not the overall estimate or target-vs-estimate comparison.
  • Project categories and number of rooms are descriptive; they do not apply invented price multipliers.

Compare two scenarios

Save the current estimate to A or B, change inputs, then compare. Stored only in this browser.

Planning estimates only. They are not binding contractor quotations, local price checks, or certified engineering advice. Inputs are calculated on this device; none are sent to our servers.

How to use this calculator

  1. Name project scope and enter approximate room count.
  2. Add materials, labor, permits, disposal, and miscellaneous allowances.
  3. Set target budget, taxes, contingency and already-made payments. Save snapshots for comparisons.

The calculation formula

Subtotal = sum of project cost lines. Contingency = subtotal × contingency%. Tax = (materials + labor) × tax%. Total = subtotal + contingency + tax. Budget remaining = target − total. Unpaid = total − payments.

Worked example

With $25,500 in direct project costs, 15% contingency ($3,825) and 5% tax on $22,500 of materials and labor ($1,125), the total is $30,450. Against a $30,000 target, the plan is $450 over budget.

Assumptions and limitations

  • Sales tax bases and permit/tax treatment vary; the default tax base is strictly materials plus labor.
  • Payments already made do not reduce the estimated project total; they only reduce the unpaid balance.

Actual project costs may be affected by supplier rates, material grade, labor market, location, disposal, site condition, access, permits, taxes, and schedule. All entered prices are yours to revise. See our methodology and disclaimer.

Frequently asked questions

Will payments count as an extra expense?

No. Payments already made are a cash-flow reference, not added to the project estimate.

Does contingency get taxed?

Not in this planner. Taxes apply only to the user-entered materials and labor amounts.