
	Year Ended December 31,
(Dollars in millions)	2020		2019		2018
Current:
Federal	$	108.9	$	40.0	$	30.3
State	50.3		24.0		11.5
	159.2		64.0		41.8
Deferred:
Federal	17.6		34.7		20.4
State	1.4		5.2		9.6
	19.0		39.9		30.0
Total	$	178.2	$	103.9	$	71.8

At December 31, 2020 and 2019, we had income taxes payable of $33.0 million and $10.1 million, respectively included as a component of accrued liabilities in our Consolidated Balance Sheets.

The reconciliation between amounts computed using the federal income tax rate of 21% and our income tax provision is shown in the following tabulation:


	Year Ended December 31,
(Dollars in millions)	2020		2019		2018
Federal tax provision at statutory rate	$	136.2	$	78.8	$	70.9
State taxes, net of federal income tax benefit	40.4		23.6		16.1

Non-deductible items	2.8		2.6		1.5
Permanent differences related to stock compensation	(0.5)		0.2		(0.1)
Net change in valuation allowance	0.5		(0.5)		0.5
General business credits	(1.3)		(0.9)		(1.1)
Deferred remeasurement for change in statutory tax rate	—		—		(15.8)
Other	0.1		0.1		(0.2)
Income tax provision	$	178.2	$	103.9	$	71.8


	December 31,
(Dollars in millions)	2020		2019
Deferred tax assets:
Deferred revenue and cancellation reserves	$	64.2	$	48.4
Allowances and accruals, including state tax carryforward amounts	55.6		42.1
Lease liability	73.4		69.7
Credits and other	3.4		0.3
Valuation allowance	(1.1)		(0.6)
Total deferred tax assets	195.5		159.9

Deferred tax liabilities:
Inventories	(44.9)		(40.0)
Goodwill	(76.5)		(60.7)
Property and equipment, principally due to differences in depreciation	(139.0)		(113.6)
Right-of-use assets	(69.8)		(66.6)
Prepaid expenses and other	(11.6)		(10.1)
Total deferred tax liabilities	(341.8)		(291.0)
Total	$	(146.3)	$	(131.1)

We consider whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon future taxable income during the periods in which those temporary differences become deductible. We consider the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carryforward periods), projected future taxable income, and tax-planning strategies in making this assessment.

As of December 31, 2020, we had a $1.1 million valuation allowance recorded associated with our deferred tax assets. The entire allowance is associated with state net operating losses generated in current and previous years. The valuation allowance increased $0.5 million in the current year as a result of losses incurred, the benefits of which are not expected to be realized.

As of December 31, 2020, we had state net operating loss (NOL) carryforward amounts totaling approximately $2.7 million, tax effected, with expiration dates through 2040. We believe that it is more likely than not that the benefit from certain state NOL carryforward amounts will not be realized. In recognition of this risk, we have recorded a valuation allowance of $1.1 million on the deferred tax assets relating to these state NOL carryforwards as discussed above.

We had no unrecognized tax benefits recorded as of December 31, 2019 and 2018. The following is a reconciliation of our unrecognized tax benefits for 2020:


(Dollars in millions)
Balance, December 31, 2019	$	—
Increase related to tax positions taken - current year	0.2
Balance, December 31, 2020	$	0.2