For security & facility management agencies

Security Guard Billing Calculator

Enter the number of posts, shifts per day, days in the month, monthly wage per guard and your statutory and service-charge percentages. The calculator works out guards required including relievers, the statutory loading per guard, the service charge and GST, and the invoice total.

Deployment and rate card
Monthly invoice for one client site.

e.g. main gate, back gate, patrol

₹

Use the state minimum wage for the guard category plus allowances.

%

12% + ~1% charges on wages up to ₹25,000.

%
%
%
%

Applied on wages plus statutory cost.

%

18% on security services; check reverse charge.

One weekly off per guard means 7 days of coverage need 7/6 guards.

Monthly invoice (incl. GST)
₹2,03,748
7.00 guards required (7 on roster) for 3 posts
Invoice build-up
Wage cost₹1,26,000
Statutory loading (24.58%)₹30,971
Service charge (10.00%)₹15,697
Subtotal before GST₹1,72,668
GST (18%)₹31,080
Invoice total₹2,03,748
Unit rates
Rate per post per month (incl. GST)₹67,916
Cost to client per guard (before GST)₹24,667
Guards on roster7

This is the planned bill. Reconcile the actual invoice against site-wise attendance so absent shifts and unfilled posts are credited, and attach the verified duty report to reduce disputes.

How agencies build a guard rate

A client pays for posts covered, not for guards employed. A post covered 24 hours on two 12-hour shifts needs two guards a day, but each guard is entitled to a weekly off, so the agency must roster relievers. Seven days of coverage divided by six working days per guard gives a reliever factor of about 1.167, which is why one 24-hour post on 12-hour shifts requires roughly 2.33 guards, and three such posts need seven. The calculator computes guards required from posts × shifts × reliever factor.

On top of the guard's monthly wage, the agency bears employer PF (12% plus EDLI and admin charges, around 13% of wages up to the ₹25,000 ceiling), employer ESI (3.25% of gross up to ₹21,000), statutory bonus (8.33%), and often provisions for gratuity, leave and uniforms. These are usually shown as separate recovery lines on the invoice. A service charge percentage covers supervision, training, insurance and margin. GST at 18% applies on the total; when a registered body corporate hires a non-body-corporate agency the reverse charge mechanism can shift GST liability to the client, so confirm the treatment with your accountant.

  • Guards required = Posts × Shifts per day × Reliever factor (7 ÷ 6 ≈ 1.167 for one weekly off)
  • Statutory loading = PF % + ESI % + Bonus % + other provisions % of wage
  • Service charge is applied on wages plus statutory loading
  • GST 18% on the invoice subtotal (check reverse charge applicability)

Why attendance-verified billing avoids disputes

Clients dispute invoices when billed man-days exceed what their gate register shows. Agencies that export site-wise, shift-wise attendance from GPS and selfie-verified check-ins and attach it to the invoice close the month faster and get paid sooner. The calculator gives the planned monthly bill; actual invoices should be reconciled against verified duties, with absent shifts and unfilled posts credited.

Frequently asked questions

How many guards are needed for one 24-hour post?
On 12-hour shifts, two guards cover a day, and with one weekly off each the agency needs about 2.33 guards per post, so three posts need seven guards. On 8-hour shifts, three guards a day become 3.5 with relievers. The reliever factor of 7 ÷ 6 assumes a six-day working week per guard.
What statutory costs does a security agency add to the guard wage?
Employer PF of 12% on basic plus DA up to ₹25,000 plus EDLI and administrative charges of about 1%, employer ESI of 3.25% on gross up to ₹21,000, statutory bonus of at least 8.33%, and provisions for gratuity, leave and uniforms where the contract allows. These are normally shown as separate lines so the client can verify them against challans.
What service charge do security agencies typically quote?
Service charges are commercial and vary with supervision levels, training, insurance and the client's payment terms. Rather than quoting a market figure, build the rate from actual wage, statutory and supervision costs and add the margin your business needs; the calculator lets you test different percentages.
Is GST charged on security guard services?
Yes, security services attract GST at 18%. Where a registered body corporate receives security services from a supplier that is not a body corporate, the reverse charge mechanism applies and the client pays the GST directly. Agencies structured as companies charge GST normally. Confirm your position with a chartered accountant.

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