What is the DEFRA Digital Waste Tracking mandate?

The Digital Waste Tracking (DWT) mandate is a law under the Environment Act 2021 requiring all waste receiving sites in England to record waste movements digitally from 1 October 2026. Paper waste transfer notes, spreadsheets, and email chains will no longer be sufficient. Producers and carriers who fail to submit digital records face Environment Agency enforcement action, including fines and prosecution.

What is BREEAM Wst01 and how does WasteMapper help?

BREEAM Wst01 is the construction waste management credit in BREEAM UK New Construction — the UK's leading sustainability rating system for buildings. It requires a minimum 95% waste diversion rate by weight, a pre-construction Site Waste Management Plan, and a complete digital movement register with EWC codes, carrier licence details, and disposal routes for every collection. WasteMapper generates the exact evidence pack format BREEAM assessors expect in one click — covering a process that typically takes contractors two days to compile manually.

What happens if my construction business isn't DWT-compliant by October 2026?

From 1 October 2026, waste receiving sites that fail to record movements digitally face Environment Agency enforcement. The EA fined over £8.5 million across the construction sector in 2025 alone. Non-compliance also creates duty of care liability — if waste is mis-described or ends up fly-tipped, the producer bears responsibility without proper digital records to prove due diligence.

How does WasteMapper verify waste carrier licences?

Every time a waste movement is logged, WasteMapper checks the carrier's licence number live against the Environment Agency's public register in real time. If a carrier's registration is expired, suspended, or invalid, the system flags it immediately — before the vehicle leaves site. This verification is recorded permanently on every movement record, providing your duty of care evidence.

Who is WasteMapper built for?

WasteMapper is designed for SME construction contractors and developers who need waste compliance without a dedicated environmental manager. If waste management currently falls to a site manager, a quantity surveyor, or "whoever deals with it," WasteMapper is built for you. It works across house-builders, groundworks contractors, fit-out specialists, and main contractors on BREEAM-rated projects.

How quickly can site workers start logging waste?

Site workers can start logging in under 60 seconds with no app download and no login required. They scan a QR code placed on site, select the waste type, photograph the collection, and submit. GPS, timestamp, employee ID, and carrier details are captured automatically. Setup for a new project typically takes under 5 minutes.

Is WasteMapper free to try?

Yes. WasteMapper has a free plan that supports 1 project and 50 waste movements per month — no credit card required. Paid plans start at £49/month for single-site contractors (Site plan). The Pro plan at £199/month covers up to 10 projects with multi-site dashboards, ESG reporting, and compliance alerts.

Does WasteMapper integrate with the GOV.UK Digital Waste Tracking service?

Yes. WasteMapper creates digital waste records that are compatible with DEFRA's DWT reporting requirements. The Intelligence plan (£499/month) includes full DEFRA API integration for automated submission — removing the need for manual data exports as the October 2026 deadline approaches.

What is the landfill tax rate for construction waste in 2026?

From April 2026, the standard landfill tax rate is £130.75 per tonne for active (non-inert) waste, which includes most mixed construction and demolition waste, timber, plasterboard, and packaging. The lower rate is £8.65 per tonne for qualifying inert waste only — concrete, bricks, tiles, ceramics, soil, and rock that meet the HMRC definition of inactive waste.

Can I enter skip loads instead of tonnes in the landfill tax calculator?

Yes. Switch to "Number of loads" mode in the calculator and enter the number of skip collections. The tool assumes 10 tonnes per load, which is a standard assumption for an 8-yard skip. If your skips are a different size or have weighbridge tickets, use tonnage mode for a more accurate result.

Do I pay landfill tax if I send waste to recycling?

No. Landfill tax is only charged on waste deposited at a licensed landfill site. Waste sent to recycling, reuse, or energy recovery is not subject to landfill tax. However, you must have documented Waste Transfer Notes showing the correct disposal route to prove the waste did not go to landfill — HMRC can investigate if records are incomplete.

How much did the lower landfill tax rate increase in 2026?

The lower landfill tax rate increased from £4.05 per tonne to £8.65 per tonne from April 2026 — a 113% increase. This applies to qualifying inert waste (soil, concrete, rock). The standard rate increased from £126.15 per tonne to £130.75 per tonne in the same period.

Who pays landfill tax on construction waste?

Landfill tax is legally paid by the landfill site operator, but the cost is passed through to waste producers in their disposal charges. As the waste producer (the construction contractor), you ultimately bear the cost through your skip hire and waste haulage invoices. Contractors who divert waste to recycling avoid the tax entirely, which is reflected in lower disposal charges from recycling facilities.

Tools/Landfill Tax Calculator/How to use

Free · No sign-up · April 2026 HMRC rates

How to use the Landfill Tax Calculator

Calculate your construction waste landfill tax liability based on waste type and tonnage. Uses the current April 2026 HMRC rates — £130.75/t standard, £8.65/t inert. Takes under a minute.

Open the Landfill Tax Calculator

April 2026 HMRC landfill tax rates

Standard rate£130.75 / tonneMixed C&D, timber, plasterboard, packaging — all non-inert waste

Lower rate£8.65 / tonneQualifying inert waste only — concrete, bricks, soil, rock

Step-by-step

Open the Landfill Tax Calculator

Go to the free calculator — no account or sign-up required.

Select your waste type

Choose "Standard rate" (£130.75/t, April 2026) for mixed C&D waste, timber, plasterboard, and general construction waste. Choose "Lower rate" (£8.65/t) only for qualifying inert waste — concrete, bricks, soil, and rock that meet HMRC's inert definition.

Not sure? If in doubt, use the standard rate. Most construction site waste is standard rate.

Choose tonnage or loads

Toggle between "Tonnage" (enter exact tonnes from weighbridge tickets) or "Number of loads" (enter skip count — assumes 10t per standard 8-yard skip). Use loads for a quick estimate; use tonnage for an accurate liability figure.

Enter your quantity

Type your tonnage or number of skip loads. The result updates instantly — no button to click.

Read your liability and diversion saving

The result shows your landfill tax liability at April 2026 HMRC rates. For standard-rate waste, it also shows the saving you'd make by diverting to recycling instead — useful for making the case to clients or management for better waste management.

Frequently asked questions

What rate applies to most construction waste?

The standard rate of £130.75/t (April 2026) applies to most construction and demolition waste — mixed C&D, timber, plasterboard, packaging. The lower rate of £8.65/t only applies to qualifying inert waste: concrete, bricks, soil, and rock.

What is qualifying inert waste for the lower rate?

HMRC defines inert waste as waste that does not significantly decompose, burn, or react. This includes concrete, bricks, tiles, ceramics, sand, gravel, rock, and uncontaminated soil. Mixed waste, timber, and plasterboard do not qualify even if predominantly inert.

Can I enter skip loads instead of tonnes?

Yes — switch to "Number of loads" mode. The tool assumes 10t per load (standard 8-yard skip). For more accuracy use tonnage mode with actual weighbridge figures.

Do I pay landfill tax if I recycle?

No. Landfill tax only applies to waste deposited at a licensed landfill. Waste sent to recycling or recovery is exempt — but you need documented Waste Transfer Notes proving the disposal route.

How much did the lower rate increase in April 2026?

The lower rate went from £4.05/t to £8.65/t — a 113% increase. The standard rate went from £126.15/t to £130.75/t.

Who actually pays the landfill tax?

Legally the landfill site operator pays it, but passes it through in disposal charges. As the waste producer, you bear the cost via your skip hire invoices. Contractors who divert to recycling avoid it entirely.

Track landfill tax automatically per project

WasteMapper calculates landfill tax exposure on every movement and shows your projected liability in real time — per project and across your whole portfolio.

Open calculator Track costs automatically