ESTIMATION
RA Bill — Running Account Bill (Interim Payment)
Running Account Bill (Interim Payment)
Also calledra billra bill full formwhat is ra billra bill meaningrunning account bill (interim payment)
Definition
Interim contractor payment claim raised periodically during construction (typically monthly) — based on measured work executed since last RA bill. Format per CPWD: covers measurements, abstract of cost, deductions (security, retention, advances), net payable. Final bill closes the account.
Frequently asked
What is the full form of RA Bill?
RA Bill = Running Account Bill (Interim Payment). Interim contractor payment claim raised periodically during construction (typically monthly) — based on measured work executed since last RA bill.
Related estimation terms
Construction Cost Estimation
Per sqft cost ₹1500-3500 in India
Quantity Estimation
Estimate cement, steel, sand, aggregate for given area
Material Wastage Factors
Cement 2-3%, steel 3-5%, tiles 5-10% typical
Bill of Quantities (BOQ)
Itemised list of work activities with quantities and unit rates — forms the priced contract document.
Rate Analysis
Computation of unit rate from material + labour + plant + overhead + profit. Reference: DSR, state SOR, in-house DB.
Abstract Estimate
Cost estimate at concept stage based on plinth area or per-bed/per-room rates. ±20% accuracy.
Detailed Estimate
Quantity-based estimate from drawings. Each work item × unit rate × quantity = cost. ±5% accuracy.
Contingency
Provision for unforeseen costs. CPWD: 3%. Private: 5-10%. Higher for renovation than new build.